'Nobody's Business': Rihanna & Chris Brown Team For New Song (AUDIO)

Whether Rihanna's new duet with Chris Brown is called "Nobody's Business" or "Nobodies Business," one thing is clear: The song -- a Michael Jackson-y throwback with auto-tune and lyrics like "It ain't nobody's business; just mine and my baby" -- is a straight-up smash. Just as long as you can get past the idea of Rihanna and Brown being together in any capacity.

"The whole thing caught me a little off-guard to be honest ... especially the amount of ... negative attention. Because it never occurred to me how this was going to be a problem. It really didn't," Rihanna told Esquire U.K. about earlier outrage over a "Birthday Cake" remix she did with Brown. "I thought people were gonna be surprised that we finally did a record together, but I didn't see how people could think it was a bad thing. In my mind, it was just music."

Beyond that, there's also controversy about the new song's title. Rihanna -- who is the middle of a whirlwind, seven-city tour -- tweeted a picture of the track-listing for "Unapologetic," her upcoming album, with the song spelled as "Nobodies Business." The track, however -- which leaked online on Thursday -- is also being called "Nobody's Business," which is grammatically correct.

Listen to Rihanna's latest song above. Check back to HuffPost for more before "Unapologetic" arrives on Nov. 19.